The Modal auxiliary verb dan kata kerja yang mengikutinya tidak mengalami perubahan untuk orang dan jumlah
The modal auxiliary verb ditempatkan segera sesudah subyek kalimat.
- Will (Future)
• They will come here on time - Can (ability, permission)
• He can play the pino. (ability)
• They can play football here. (Permission) - Could (ability in the past, possibility)
• She could climb when she wa still young. (ability in the past)
• She could come in a minute. (possibility) - Must (conclusion, probability, necessity)
• He must be twenty years old. (conclusion, probability)
• You must be hungry. (conclusion, probability)
• You must study tonight. - Might (Possibility)
• He might get a rise in his salary. (possibility) - Should/ought to (obligation, desirability)
• Students ought to/should study regularly. (obligation)
• You ought not to/shouldn’t drink and drive. (desirability) - May (Pemission, possibility)
• The children may play here. (permission)
• He may get a raise. (possibility)
2. Tom can … play soccer.
3. Could you please … open the window?
4.Would you … speak more slowly, please?
5. We may … go to Argentina for our vacation.
6. Will you please … mail this letter for me?
7. The students must … learn all of the irregular verbs.
8. Sally has … do her history.
9. I think you should … take better care of yourself.
10. I ought … go to the office this afternoon.
Sumber :
http://jaka91.ngeblogs.com/2010/03/08/modal-auxiliaries/